Sewer Leak Detection in Chilliwack, BC

The camera sees the pipe's inside; GPR sees what the leak has done to the ground around it. A hairline crack can hide a washout void several times the pipe diameter — the thing that eventually becomes a sinkhole. Scoping the repair without the void picture routinely under-scopes the job.

Yes — under-slab sanitary failures are a classic GPR call. The void and moisture halo image clearly through 100–200 mm slabs with the 1.6 GHz antenna, and CCTV confirms from the cleanout.

PACP (Pipeline Assessment Certification Program) is the NASSCO standard for coding pipe defects. Coded reports let engineers, municipalities, and insurers compare condition objectively — and they hold up in disputes.

Usually no — sewers are gravity drains, not pressurised supply. The cost shows up instead as ground settlement, odours, pest attraction, and eventually structural undermining. That is why void detection matters more than flow measurement on sanitary leaks.

Chilliwack sits on Fraser floodplain gravels and sands with mountain-fan gravels at the valley edges. Free-draining floodplain gravels are superb GPR ground — 3–4 m penetration is routine, among the best in the Lower Mainland. We select antenna frequency to match — and where local ground limits radar depth, we pair GPR with electromagnetic locating, acoustic methods, or tracer gas so the survey objective is met regardless of soil conditions.

Chilliwack is part of our standing Fraser Valley service area — the same certified technicians and equipment that cover the rest of the region. Scheduling is typically within 24–72 hours, with same-day response often possible during business hours (Mon–Sat, 8am–6pm Pacific).

Pricing matches our province-wide structure — no regional premium for Chilliwack. Most residential-scale work falls in the $350–$1,200 range depending on scope; commercial and multi-site projects are quoted after a free phone consult. Call 604-239-9934 and we will give you a tight estimate in five minutes.